6. Testing and Evaluation of Software Solutions

Question 1

Difference between:
- Statement Coverage
- Decision Coverage
- Path-Based

Answer 1

Statement Coverage - Testing every statement to ensure it is executed
Decision Coverage - Testing every boundary condition
Path-Based - Testing every possible pathway in an algorithm

Question 2

What is peer checking?

Answer 2

• Less formal/informal
• Usually people within the same organisation/group
• People who are at the same skill level

Question 3

What is a structured walkthrough?

Answer 3

• Normally undertaken at formal meetings
• Developer presents their work to a group of people who are interested
• Developers walk through step by step through each aspect of their code
• Relevant documentation should be given prior

Question 4

Difference between peer checking and structured walkthrough?

Answer 4

• Peer checking is for quick feedback on code
• Structured walkthrough for major code that needs to be evaluated effectively
• Peer less formal

Question 5

How do you design test data effectively?

Answer 5

• Boundary values should be used to check if decisions work properly
• Statement, decision, and path coverage tests

Question 6

Characteristics of a desk check?

Answer 6

• Record all variables
• Track how they change and will be used to check for logic errors
• Evaluates design of code and algorithms